It’s officially tourney time. Just how much is wagered on games? To what degree do workers slack off to keep up with the action on the court? What is your office doing to stop you from streaming video so maybe you’ll actually get some work done? The numbers tell all.

$639 million: Estimated value of the publicity and exposure Butler University received during the Indianapolis school’s run to the 2010 tournament final; after making it to the championship game that year, applications to Butler increased 41%.

$4 billion, $192 million: One high and one lower estimate for how much lower productivity and lost work hours collectively costs businesses during the NCAA tournament.

$12 billion: Estimated amount of money gambled on the NCAA tournament last year. Of that, just $100 million or so was gambled legally through sports books. Approximately $3 billion was bet in office pools, while the rest was wagered through other, less-than-legal outlets.

Brad Tuttle is a reporter at TIME. Find him on Twitter at @bradrtuttle. You can also continue the discussion on TIME’s Facebook page and on Twitter at @TIME.